Dwyer CDTR-2D404 Carbon Dioxide/Rh/Temperature Transmitter Professional Grade

Dwyer CDTR-2D404 is a carbon dioxide, relative humidity, and temperature transmitter with a temperature range of 32 to 122°F (0 to 50°C). It has an accuracy of ±40 PPM + 3% of reading for CO2 and ±2% for RH. The transmitter requires a power input of 16 to 35 VDC or 19 to 28 VAC and has a response time of 2 minutes for a 99% step change. It has multiple output options including current, voltage, relay, and RTD/thermistor. The transmitter is enclosed in a duct mount NEMA 4X (IP66) housing or wall mount IP20 enclosure and has a sensor with a non-dispersive infrared (NDIR) technology. It operates at a humidity range of 10 to 95% RH (non-condensing) and has a power consumption of 2 watts on average. The transmitter has a non-linearity of 16 PPM and a temperature dependence of ±8 PPM/°C at 1100 PPM. It also has a pressure dependence of 0.13% of reading per mm of Hg and a velocity range of 0-4000 FPM (20.32 m/s).